Initializing help system before first use

Subroutine definition

User defined subroutines in Mosel have to be marked with procedure / end-procedure and function / end-function respectively. The return value of a function has to be assigned to returned as shown in the following example (model subrout.mos). 

model "Simple subroutines"

 declarations
  a:integer
 end-declarations

 function three:integer
  returned := 3
 end-function

 procedure print_start
  writeln("The program starts here.")
 end-procedure

 print_start
 a:=three
 writeln("a = ", a)

end-model

This program will produce the following output:

The program starts here.
a = 3
Parent Topic Functions and procedures

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